Is this Mike is backpack的答语是yes this is吗

Is this Mike is backpack的答语是yes this is吗 请问Is this your sister?的答语是 Yes,it is还是Yes,she is. Is this your sister?的答语是Yes,it/she is. Is this your mother?的答语是Yes,it is 还是Yes,she is 请说明原因 Is this your mother 的答语是yes ,it is 还是yes,she is 请说明原因 Is this your sister?的答语是? is this your sister的答语是 英语句子答语What is this?的答语是This is还是It is is this you book,mike?yes,______are —Cindy,is this your backpack?—Yes,t____ you. Is his name mike?答语是yes,he is.还是yes,it is.呢 this is mike的上一句